I've been going back and forth on the idea of someone singing at our wedding. I love the song "Can't Help Falling In Love" (not the elvis version, the one by Haley Reinhart). It's short, sweet, and beautiful.
I already have my processional song picked for the bridesmaids/family walking down the aisle otherwise I would use it for this time. (it's not long enough anyways though).
We aren't doing a unity candle or sand, but we are doing a "Knot Tying" ceremony. However, I have a reading to go with this as it explains the resemblance of the knot we tie.